Vent closure device



FIG. 1 is a top perspective view of a vent closure device showing my newdesign;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front view of the vent closure device shown in FIG. 3 assighted along arrow 5 of FIG. 3, the rear view being a mirror image;

FIG. 6 is a right end view of the vent closure device shown in FIG. 3 assighted along arrow 6 of FIG. 3; and,

FIG. 7 is a left end view of the vent closure device shown in FIG. 3 assighted along arrow 7 of FIG. 3.

The ornamental design for a vent closure device, as shown and described.